2009年4月
Universality of bias- and temperature-induced dephasing in ballistic electronic interferometers
PHYSICAL REVIEW B
- 巻
- 79
- 号
- 16
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1103/PhysRevB.79.161306
- 出版者・発行元
- AMER PHYSICAL SOC
We performed a transport measurement in a ballistic Aharonov-Bohm ring and a Fabry-Perot-type interferometer. In both cases we found that the interference signal is reversed at a certain bias voltage and that the visibility decays exponentially as a function of temperature, being in a strong analogy with recent reports on the electronic Mach-Zehnder interferometers. By analyzing the data including those in the previous works, the energy scales that characterize the dephasing are found to be dominantly dependent on the interferometer size, implying the presence of a universal behavior in ballistic interferometers in both linear and nonlinear transport regimes.
- リンク情報
- ID情報
-
- DOI : 10.1103/PhysRevB.79.161306
- ISSN : 1098-0121
- Web of Science ID : WOS:000265945200010